Assume that the birth of a boy or girl to a couple to be equally likely, mutually exclusive, exhaustive and independent of the other children in the family. For a couple having `6` children, the probability that their "three oldest are boys" isA. `(20)/(64)`B. `(1)/(64)`C. `(8)/(64)`D. none of these

Assume that the birth of a boy or girl to a couple to be equally likel

1.	Assume that the birth of a boy or girl to a couple to be equally likely, mutually exclusive, exhaustive and independent of the other children in the family. For a couple having `6` children, the probability that their "three oldest are boys" isA. `(20)/(64)`B. `(1)/(64)`C. `(8)/(64)`D. none of these
Answer» Correct Answer - C `(c )` `E : B_(1)B_(2)B_(3)xxxxxx`, where `xx` means `B` or `G` `:.P(E)=(1)/(2)(1)/(2)(1)/(2)=(1)/(8)=(8)/(64)`

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